Ions multiple choice Q
C
0.5 mol of citric acid was dissolved in water and made up to 500cm³ of solution. What was the concentration of the solution formed? A 0.25 mol l⁻¹ B 0.5mol l⁻¹ C 1.0 mol l⁻¹ D 2.0 mol l⁻¹
C
0.5 mol of gas X has a mass of 23g. Gas X could be A CH₄ B CO₂ C NO₂ D NH₃
C
100 cm³ of a solution contains 0.2 moles of solute. The concentration of the solution, in mol l⁻¹ is A 0.002 B 0.5 C 2 D 5
A
4NH₃ + xO₂ → 4NO + yH₂O This equation will be balanced when A x=5 , y=6 B x=5, y=10 C x=3, y=6 D x=3, y=10
B
A metal X reacts with oxygen to form an oxide X₂O₃. During the reaction each atom of metal X A gains two electrons B gains three electrons C loses two electrons D loses three electrons
A
An ion has 19 protons, 20 neutrons and 18 electrons. The charge on the ion is A 1⁺ B 1⁻ C 2⁺ D 2⁻
C
Atoms of an element form ions with a single positive charge and an electron arrangement of 2,8. The element is A fluorine B lithium C sodium D neon
A
During electrolysis of silver(I) nitrate solution, silver ions, Ag⁺ A gains electrons at the negative electrode B lose electrons at the negative electrode C gain electrons at the positive electrode D lose electrons at the positive electrode
A
Which of the following solutions when added to copper(II)chloride solution will produce a precipitate?(You may wish to use page 8 of the data booklet to help you). A sodium hydroxide solution B calcium bromide solution C magnesium nitrate solution D lithium sulfate solution
D
Which of the following solutions would produce a precipitate when mixed together? (You may wish to use page 8 of the data booklet to help you). A ammonium chloride and potassium nitrate B zinc nitrate and magnesium sulfate C calcium nitrate and nickel chloride D sodium iodide and silver nitrate
D
Which of the following substances has the smallest gram formula mass A CO B CO₂ C N₂ D CH₄
B
The charge on the iron ion in Fe₂(SO₄)₃ is A 2+ B 3+ C 2- D 3-
A
The charge on the iron ion in Zn₃(PO₄)₂ is A 2+ B 3+ C 2- D 3-
C
The formula for aluminium sulphate is A AlSO₄ B Al(SO₄)₃ C Al₂(SO₄)₃ D Al₃(SO₄)₂
B
The formula for magnesium sulphite is A MgS B MgSO₃ C MgSO₄ D MgS₂O₃
B
The formula for potassium sulphate is A P₂SO₃ B K₂SO₄ C P₂SO₄ D K₂S
C
The formula mass of ammonium carbonate, (NH₄)₂CO₃ A 52 B 64 C 96 D 110
A
The gram formula mass of sodium carbonate is 106g. How many moles are present in 5.3g of sodium carbonate? A 0.05 B 0.5 C 2 D 20
C
Vinegar can be made by dissolving ethanoic acid in water. Which term describes the ethanoic acid used when making vinegar? A Solute B Saturated C Solvent D Solution
C
What is the charge on the chromium ion in CrCl₃ A 1+ B 1- C 3+ D 3-
A
What is the name of the compound with the formula Ag₂O A silver (I) oxide B silver (II) oxide C silver (III) oxide D silver (IV) oxide
B
What is the name of the compound with the formula VO₂ A vanadium (V) oxide B vanadium (IV) oxide C vanadium (III) oxide D vanadium (II) oxide
C
What is the relative formula mass of ammonium sulphate, (NH₄)₂SO₄ A 70 B 118 C 132 D 228
D
Which of the following compounds contains only two elements A magnesium hydroxide B magnesium phosphate C magnesium sulphite D magnesium nitride
D
Which of the following particles contains a different number of electrons from the others? A Cl⁻ B S²⁻ C Ar D Na⁺
B
Which of the following sodium chloride solutions would contain most dissolved solute? A 100 cm³ of 4 mol l⁻¹ solution B 200 cm³ of 3 mol l⁻¹ solution C 300 cm³ of 1mol l⁻¹ solution D 400 cm³ of 0.5 mol l⁻¹ solution
C
Fe₂O₃ + xCO → yFe + 3CO₂ This equation will be balanced when A x=1 and y=2 B x=2 and y=2 C x=3 and y=2 D x=2 and y=3
A
How many moles are present in 1.7g of ammonia, NH₃ A 0.1 B 1.0 C 1.7 D 17
A
Lemonade can be made by dissolving sugar, lemon juice and carbon dioxide in water. In lemonade the solvent is A water B sugar C lemon juice D carbon dioxide
B
xAl + yBr₂ → zAlBr₃ This equation will be balanced when A x=1 , y=2 , z=1 B x=2 , y=3 , z=2 C x=3 , y=2 , z=3 D x=4 , y=3 , z=4
